Inventor
TOZUKA TARO
JP4 patents
⚠️ This page may combine multiple inventors who share the name “TOZUKA TARO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PILOT CORPORATION KK
3 patentsUS11560490B2Jan 24, 2023
Water-based ink composition for ballpoint pen and water-based ballpoint pen using the same
PILOT CORPORATION KK0 citations54
US9976043B2May 22, 2018
Solid writing material
PILOT CORPORATION KK0 citations43
US10145814B2Dec 4, 2018
Internal solution for reference electrode, reference electrode, and glass electrode
PILOT CORPORATION KK0 citations38